Related Experiment Video
Updated: Jun 11, 2026
11:50
A Standardized Pipeline for Examining Human Cerebellar Grey Matter Morphometry using Structural Magnetic Resonance Imaging
Published on: February 4, 2022
A morphometric study on dog cerebellum
Necat Koyun1, Atif Aydinlioğlu, Kadir Aslan
1Department of Anatomy, Medical Faculty, Yüzüncü Yıl University, Van, Turkey.
Neurological Research
|July 15, 2010
Summary
This study found significant volume differences between the left and right sides of dog cerebellums, varying by sex and paw preference. These cerebellar asymmetries may indicate functional specialization in dogs.
Area of Science:
- Neuroscience
- Comparative Anatomy
- Veterinary Medicine
Background:
- Previous human studies using magnetic resonance imaging (MRI) have not found significant left-right asymmetry in the cerebellum.
- A lack of animal research exists regarding cerebellar asymmetry, limiting our understanding of its evolutionary and functional significance.
Purpose of the Study:
- To investigate volumetric asymmetries in the canine cerebellum.
- To explore potential correlations between cerebellar asymmetry, sex, and paw preference in dogs.
Main Methods:
- Post-mortem analysis of 16 adult mongrel dogs (8 male, 8 female) with documented paw preference.
- Dissection of cerebellums into anterior and posterior lobes.
- Volumetric measurement of right and left cerebellar hemispheres using a specialized device.
Main Results:
- Significant volumetric asymmetries were observed between the right and left cerebellar hemispheres in dogs.
- Cerebellar volume asymmetry varied significantly based on sex and paw preference.
- These findings suggest a pattern of lateralization within the dog cerebellum.
Conclusions:
- The dog cerebellum exhibits significant morphological asymmetries related to hemisphere, sex, and paw preference.
- These asymmetries may be linked to functional specialization and lateralization in the canine brain.
- Further research is warranted to elucidate the relationship between cerebellar structure and functional lateralization in dogs.
Related Concept Videos
01:11Cerebrum: Anatomical Overview II
Each cerebral hemisphere can be divided into three main regions. The outermost region, the cerebral cortex, is a thin layer (2 to 4 millimeters thick) made up of gray matter, consisting of neuron cell bodies, dendrites, glial cells, and blood vessels. The middle region, or white matter, is primarily composed of myelinated nerve fibers organized into three types of large tracts: association fibers, commissures, and projection fibers. Association fibers connect different areas within the same...
01:26Cerebrum: Anatomical Overview I
The main and largest component of the human brain is the cerebrum. The cerebrum consists of two main parts: the cerebral cortex, an outer layer with wrinkles or folds known as gyri and shallow grooves called sulci, and a deeper region beneath it. The cerebrum divides into two distinct hemispheres and contains five different lobes: the frontal, parietal, temporal, occipital, and insula. The central sulcus separates the frontal and parietal lobes and two functionally important gyri — the...
01:17Cerebellum: Anatomical Regions
The cerebellum, also known as the "little brain," is located in the posterior cranial fossa, inferior to the tentorium cerebelli and dorsal to the brainstem. It plays a significant role in motor control, coordination, and proprioception.
Cerebellar Structure
Externally, the cerebellum features a highly convoluted surface with numerous folia (narrow ridges) separated by shallow sulci (grooves). The cerebellum is divided into two hemispheres by a thin median structure known as the vermis. The...
Cerebellar Structure
Externally, the cerebellum features a highly convoluted surface with numerous folia (narrow ridges) separated by shallow sulci (grooves). The cerebellum is divided into two hemispheres by a thin median structure known as the vermis. The...
01:18Anatomy of the Brain: Ventricles
There are hollow fluid-filled cavities known as ventricles deep inside the human brain. There are two lateral ventricles, one in each cerebral hemisphere, and each has three different projections — the anterior, inferior, and posterior horns visible from the lateral side. A thin membrane called the septum pellucidum separates the two lateral ventricles. The slender third ventricle in the diencephalon is connected to each lateral ventricle via a channel called the interventricular foramen. The...